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WTB slicer or ssb adapter
The reason I said either slicer or ssb adapter is as follows:
A slicer allows one to copy and select the sideband on an older receiver such as the Hammarlund 129X. The most prominent slicer was amde by Central Electronics there were two versions, one just a slicer and another with a Q Multiplier which was usually missing from older receivers. There were several other slicers on the market. I had one called a VR made in New England. RME made one to match the 4300/4350 receivers. This was the only one that did not match 455 kcs IF's. The best example of the ssb adapter was the Hammarlund HC-10 which added another IF plus a slot and pass band filter. The SPC-10 was exactly the same except sold to the DOD for six times as much as the HC-10. Frank Lester (SK) designed these and helped incorporate them into several of the Hammarlund receivers. TMC and several others made ssb adapters, too. Both the slicer and SSB adapters made copying CW better too. Dave K4JRB and still looking! |
WTB slicer or ssb adapter
"David Thompson" wrote in message ... The reason I said either slicer or ssb adapter is as follows: A slicer allows one to copy and select the sideband on an older receiver such as the Hammarlund 129X. The most prominent slicer was amde by Central Electronics there were two versions, one just a slicer and another with a Q Multiplier which was usually missing from older receivers. There were several other slicers on the market. I had one called a VR made in New England. RME made one to match the 4300/4350 receivers. This was the only one that did not match 455 kcs IF's. The best example of the ssb adapter was the Hammarlund HC-10 which added another IF plus a slot and pass band filter. The SPC-10 was exactly the same except sold to the DOD for six times as much as the HC-10. Frank Lester (SK) designed these and helped incorporate them into several of the Hammarlund receivers. TMC and several others made ssb adapters, too. Both the slicer and SSB adapters made copying CW better too. Dave K4JRB and still looking! The B&W 370 includes a SSB crystal filter. |
WTB slicer or ssb adapter
On May 16, 3:18*pm, "David Thompson" wrote:
Sure a solid state one would be OK. *There is a solid state SSB adapter on Ebay for the little solid state receivers ($40 or so). *Just need to get one to match the 455 IF as I am betting the little Chinese RX has an odd ball IF probably 30 mhz or higher! Dave K4JRB Those radios have a 455 if output to connect to that adapter. |
WTB slicer or ssb adapter
My RME 4350 has a 455 kc if. Never owned the 4301, but expect it would have
taken the output after the 455 kc conversion. 73, Colin K7FM |
WTB slicer or ssb adapter
In article ,
wrote: On May 16, 3:18=A0pm, "David Thompson" wrote: Sure a solid state one would be OK. =A0There is a solid state SSB adapter = on Ebay for the little solid state receivers ($40 or so). =A0Just need to get= one to match the 455 IF as I am betting the little Chinese RX has an odd ball = IF probably 30 mhz or higher! Dave K4JRB Those radios have a 455 if output to connect to that adapter. What is this adaptor and this radio? Anybody got an actual name? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." |
WTB slicer or ssb adapter
"Edward Knobloch" wrote in message news:KmoYj.505$ju1.354@trndny06... Richard Knoppow wrote: I found the handbook for the CE box on BAMA and will have a look at what they are doing. Hi, The Central Electronics Slicer was based on the GE Signal Slicer, which appeared in GE Ham News, July-Aug 1951. BANA has the issue, under the category gehamnews, filename ge0604.pdf The GE article shows how to build it, including the the 90 degree audio phase shift network. It's pretty slick - a selectable sideband adapter based on a phase shifting circuit, for any 450kc to 500kc i.f. receiver. 73, Ed Knobloch I printed this out. The GE treatment is much more informative than the CE handbook and the schematic is drawn in a less confusing way. This issue of GE Ham News does not have details of the 90degree network, it refers to an earlier edition which has an artical on building a phasing type transmitting SSB generator. That one does not appear to be on-line, at least not on the BAMA site. Its interesting to me that General Electric was hep to SSB for ham use in about 1950 when it was still quite a novelty. Of course SSB goes back into the 1930's for commercial purposes, maybe even earlier. I don't remember when AT&T began to use it for their transoceanic telephone service. -- --- Richard Knoppow Los Angeles, CA, USA |
WTB slicer or ssb adapter
On May 21, 8:01 am, (Scott Dorsey) wrote:
In article , wrote: On May 16, 3:18=A0pm, "David Thompson" wrote: Sure a solid state one would be OK. =A0There is a solid state SSB adapter = on Ebay for the little solid state receivers ($40 or so). =A0Just need to get= one to match the 455 IF as I am betting the little Chinese RX has an odd ball = IF probably 30 mhz or higher! Dave K4JRB Those radios have a 455 if output to connect to that adapter. What is this adaptor and this radio? Anybody got an actual name? --scott -- "C'est un Nagra. C'est suisse, et tres, tres precis." E-Bay Item # 140138471416 |
WTB slicer or ssb adapter
E-Bay Item # 140138471416 Given the array of components, looks like a simple crystal controlled BFO, not a product detector? Any idea of what the IF is? |
WTB slicer or ssb adapter
On May 22, 10:18 am, k3hvg wrote:
E-Bay Item # 140138471416 Given the array of components, looks like a simple crystal controlled BFO, not a product detector? Any idea of what the IF is? 455 KC |
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